I wouldn't say at same level. Just at similar level. HYP favor more well-rounded students and Wharton favors more on technical/science side. But any HYP applicants who intended to major in business will have at least same qulifications as Wharton applicants if not better. My experience and what I found is that Wharton is still easier to get in. Admission rates are just hard to compare especially when they are close. We just do not have evidence to say the applicant pools are the same.